気体中の電子群重心移動速度

書誌事項

タイトル別名
  • The Centroid Drift Velocity of Electron Swarms in Gases
  • キタイチュウ ノ デンシグン ジュウシン イドウ ソクド

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抄録

A new evaluation technique for the centroid drift velocity Wr of isolated electron swarms in gases is proposed based on moment equations. In addition to the average velocity Wv of the individual electrons in an electron swam, Wr has another velocity componemt due to effects of ionization and eleotron attachment. Mechanisms that cause the difference between Wr and Wv are illustrated, and quantitatively demonstrated by simulations using a propagator method. The effects of ionization and electron attachment on Wr are analyzed in detail by introducing the moment generation rate as a key quantity to categorize the effects.

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